Burner.



PATENTED DC. 3, 1907.

M. W. PITNEB..

BURNER.

APPLIOATION FILED MAB.26.1906.

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MARION W. PITNER, OF CHICAGO, ILLINOIS.

BURNER.

Specification of Letters Patent.

Patented Dec. 3, 1907.

Application filed March 26. 1906. Serial No. 308.100.

T o all whom it may concern.'

Be it known that I, MARION W. PITNER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented newv and useful Improvements in Burners, of which the following is a specification.

This invention relates to burners of the type employed for burning gasolene or other hydrocarbon oil vapor, and is directed especially to the means for supporting the mantle on the burner and to the devices for sustaining the chimney andshade in place, and has for its objects to provide a simple, inexpensive device. of this character wherein the shade and chimney'supporting arms may be conveniently detached and interchanged for accommodating shades and chimneys of different sizes, and one wherein the mantle will be firmly supported upon the burner.

With these and other objects in view, the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

In the accompanying drawings, there is illustrated a side elevation, partly in central, vertical section, of a burner embodying the invention.

Referring to the drawing, 1 designates the burner base composed of metal, as usual, and of tubular form, as shown, said base being provided at its upper end with an internal, marginal shoulder 2 on which the burner screen 3 is seated and marginally supported, there being, in accordance with the present invention, centrally disposed within the basel a substantially L-shaped supporting member or arm 4 having its vertical portion provided with a socket 5 and its horizontal portion terminally fitted in an opening 6 formed therefor in the wall of the base 1, there being formed at the upper end of the member a shoulder 7 on which the screen 3 rests and by which it is supported at its center, while seated at its lower end in the socket 5 is a vertical mantle supporting post or standard 8 having its upper end appropriately engaged with the upper end of the mantle 9, the lower end of which incloses the upper end of the burner base 1, as usual.

The burner base 1 is provided with a plurality of transverse internally threaded openings 10 to receive the lower screwthreaded ends 11 -of shade supporting arms 12 formed 'for engagement at their upper ends with a shade 13 and curved inwardly between their ends, as shown, for engage ment with the lowerportion of a chimney 14, which is securely clamped between the arms, it being noted in this connection that the arms 12 may be readily detached from the vbase 1 to ermit interchangeability of the arms for the accommodation of chimneys and shades of varying sizes, and furthermore, that the arms will while affording ample support for the glassware offer practically no obstruction to the air passing into the lower end of the chimney for feeding the burner.

It may be mentioned that in the operation of hydrocarbon vapor burners the mantle becomes highly heated and an excessive amount of heat is radiated therefrom, which necessitates the employment of comparatively large chimneys for permitting the free passage of a sufficient amount of air between the mantle and chimney to properly cool and prevent breakage of the latter, the sizes of the chimneys employed being varied' to accord with the size of the 4rnantles and in accordance with other varying conditions, provision for which contingencies is made by adapting the arms 12 to be interchanged in accordance with my invention, and as above described. Furthermore, in devices of this class, it has been found that where metal supporting posts for the mantles are employed the heat radiated produces an eX- cessive expansion and contraction of the post, thus causing an objectionable movement of the mantle resulting in breakage of the latter. An attempt has been made to obviate this objection by employing magnesia center supports for the mantles, the burner being provided with a socket carried` by the burner screen to receive the lower end of the post, this method being objectionable, however, to the extent that the weight of the post and mantle on the screen when heated causes the screen to sag and permit lateral movement of the post, thereby throwing the lower end of the mantle into contact with the burner and resulting in the mantle being broken. Under my improved device this objection is wholly overcome and not only is the center post and mantlemaintained rigidly in proper position by means of the socket member 4, but the screen 3 is also supported at its center by the latter, thus prolonging the life of the screen and entirely obviating damageto the mantle through movement of the center post.

Having thusdescribed my invention, 'what I claim is:

1. In a device of the class described, a tubular burner base, a'burner screen removably positioned thereon, a supporting member positioned Wholly Withinand attached to the base,said member beingy formed Jfor en-A gagement With and to centrally'support the screenand permitthe latter tobe removable from the 'member and having asoc'ke't to receive ithe lower vend of Aa mantle supporting posit.

bu'l'ar "burner base, a ks'lipporting member permanently' disposed WhollyFWithin'f and -attached to 1ythe base, v"said f'membe'r being provided fat itsupperend with abearingshoulder, and a screen:pQSitiGnedfinthe'upper end f 'the burner base and loosely and {removably resting at its cen'terupony said shoulder, the supporting 'member "beingformed for' engagement with I a mantle-supporting 'post.

4. ln afmantle'burner, the combinationfof 'loosely on the base and having a tubular base a SupportingA member arranged Within the base and extending vertically and provided with a vertical socket at its upper `end, means for permanently attaching the bottom of the member to the base, a mantle supporting post held in an upright position solely by having its lower end removably resting in the socket of the member, and a vremovable screen supported an opening for receiving the lmember yand post. .5. In amantleburner, the combination oi a tubular base provided With an internal shoulder disposed 'inwardly from its upper' end, a central 'supporting member provided Withan external shoulder-and having a vertically extending socket, meansffor attaching the lovver end ofthe. member to the base, a Amantle supporting post removably engaged-in the socket, anda screen in'theform l of a disk setinto 'the upper end of thebase and lresting on the internal shoulder of fthe latter and yprovided With an opening lor 'receiving the upper end of =the member and bearing on vthe shoulder 'of the latter, the disk -cooperating with the said means lfor holding ythe member in i'ixed `positionso that the mantle supporting post Will be v'main- 

